game save file editing

Hello,

I am using root explorer to view my data files for a game and found the stats file. I am trying to edit the numeric value but problem is the numbers are in a code.

Example 3 stat is giving me code- rjeWzsojBw3rZ
another 3 stat code is - 5u3YxyGC5494
and last 3 stat code is- 1ioWnPOfAt2R

from what it looks like everytime i try to edit the code it changes to something different when i reopen the file.

I am trying to make the stat 99 is there a code that someone can generate for me that i can try or knows where i can do it myself?